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On 2/24/21 2:29 AM, Zac Medico wrote: |
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> For example, for 3 USE flags, up to 8 combinations will be indexed: |
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> |
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> IUSE="a b c installsources splitdebug" |
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> SRC_URI=" |
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> !a? !b? !c? ( mirror://binhost/24fe6bd377 ) |
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> !a? !b? c? ( mirror://binhost/fbe14cbb02 ) |
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> !a? b? !c? ( mirror://binhost/1dfff1f2ac ) |
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> !a? b? c? ( mirror://binhost/ae60f2940d ) |
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> a? !b? !c? ( mirror://binhost/2976e1acc0 ) |
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> a? !b? c? ( mirror://binhost/f4809db70c ) |
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> a? b? !c? ( mirror://binhost/ecd08466cf ) |
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> a? b? c? ( mirror://binhost/0c00f33b2e ) |
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> installsources? ( |
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> !a? !b? !c? ( mirror://binhost/063a14d6c7 ) |
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> !a? !b? c? ( mirror://binhost/f67c311625 ) |
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> !a? b? !c? ( mirror://binhost/1dfff1f2ac ) |
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> !a? b? c? ( mirror://binhost/17a673e16a ) |
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> a? !b? !c? ( mirror://binhost/914d1cecfe ) |
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> a? !b? c? ( mirror://binhost/ca18d86a2b ) |
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> a? b? !c? ( mirror://binhost/6bce13471a ) |
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> a? b? c? ( mirror://binhost/3a6bdcd228 ) |
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> ) |
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> splitdebug? ( |
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> !a? !b? !c? ( mirror://binhost/29b2f38c41 ) |
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> !a? !b? c? ( mirror://binhost/8adc9bef51 ) |
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> !a? b? !c? ( mirror://binhost/954d2ce484 ) |
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> !a? b? c? ( mirror://binhost/32a614aaca ) |
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> a? !b? !c? ( mirror://binhost/3548a2302d ) |
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> a? !b? c? ( mirror://binhost/e0c02cdc88 ) |
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> a? b? !c? ( mirror://binhost/f9cbd3c181 ) |
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> a? b? c? ( mirror://binhost/31d4c03474 ) |
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> ) |
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> " |
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> |
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> For installsources, we can automate deduplication, so that we can |
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> distribute the same file content for multiple USE combinations when |
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> appropriate. If all of the combinations have identical content, then it |
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> will look like this: |
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> |
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> installsources? ( |
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> !a? !b? !c? ( mirror://binhost/063a14d6c7 ) |
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> !a? !b? c? ( mirror://binhost/063a14d6c7 ) |
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> !a? b? !c? ( mirror://binhost/063a14d6c7 ) |
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> !a? b? c? ( mirror://binhost/063a14d6c7 ) |
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> a? !b? !c? ( mirror://binhost/063a14d6c7 ) |
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> a? !b? c? ( mirror://binhost/063a14d6c7 ) |
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> a? b? !c? ( mirror://binhost/063a14d6c7 ) |
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> a? b? c? ( mirror://binhost/063a14d6c7 ) |
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> ) |
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> |
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> In order to ensure that an ebin is not selected for a USE combination |
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> that has not been built yet, combinations for existing builds will be |
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> listed in REQUIRED_USE, like this: |
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> |
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> REQUIRED_USE=" |
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> || ( |
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> ( !a !b !c ) |
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> ( !a !b c ) |
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> ( !a b !c ) |
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> ( !a b c ) |
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> ( a !b !c ) |
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> ( a !b c ) |
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> ( a b !c ) |
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> ( a b c ) |
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> ) |
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> " |
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|
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In https://bugs.gentoo.org/772380 I'm planning to implement a script |
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that will take an existing $PKGDIR as input, and generate an "ebin" |
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binhost as output. It will automatically split out pre-built content |
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bundles for installsources and splitdebug as shown above. If there is |
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more than one build for a particular package version and USE |
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combination, then the script will choose the package instance with |
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latest BUILD_TIME metadata (in alignment with |
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FEATURES=binpkg-multi-instance). |
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-- |
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Thanks, |
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Zac |
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